SAN (Storage Area Network)

A SAN is a high-speed network providing block-level storage access to servers, typically for enterprise workloads.

What is SAN?

A Storage Area Network (SAN) is a dedicated high-speed network that provides block-level storage access, appearing to servers as locally attached drives.

SAN technologies

Fibre Channel, iSCSI, FCoE (Fibre Channel over Ethernet).

Common misconceptions

"SAN is just network storage" — Block-level, not file-level
"NAS can replace SAN" — Different use cases
"SAN is outdated" — Still essential for enterprise